Hi. I just got a brand-new HP Pavilion dv9750us laptop with a Matsushita BD-CMB UJ-120 blu-ray drive. Unfortunately, it's set for Region C when I am trying to play region A blu-ray discs, tried using the quickplay menu controls but it is firmly set on Region C. Can anyone please help me unlock the drive? The unit comes with a full remote to go with the accompanying HP TV tuner, so perhaps I can use that to enter any unlock code. Thanks, take care!